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Synonym(s) CDG syndrome type IIa
Carbohydrate deficient glycoprotein syndrome type IIa
Congenital disorder of glycosylation type 2a
Congenital disorder of glycosylation type IIa
N-acetylglucosaminyltransferase 2 deficiency
Prevalence <1 / 1 000 000
Inheritance Autosomal recessive
Age of onset Infancy
  • E77.8
MeSH -
MedDRA -


Disease definition

MGAT2-CDG is a form of congenital disorders of N-linked glycosylation characterized by facial dysmorphism (large, posteriorly rotated ears with prominent antihelices, convex nasal ridge, open mouth, large and crowded teeth), stereotypic hand movements, seizures, and varying degrees of developmental delay. A bleeding tendency is also observed and this results from diminished platelet aggregation. The disease is caused by loss-of-function mutations in the gene MGAT2 (14q21).

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Detailed information

Clinical genetics review
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